Tip effects in the scanning-tunneling microscopy of semiconductor electrodes

被引:4
作者
Hiesgen, R
Meissner, D
Schmickler, W [1 ]
机构
[1] Univ Ulm, Abt Elektrochem, D-89069 Ulm, Germany
[2] Tech Univ Linz, A-4040 Linz, Austria
[3] Tech Univ Munich, Phys Dept E19, D-85748 Garching, Germany
关键词
electrochemical methods; scanning tunneling microscopy; solid-liquid interfaces; semiconductor-electrolyte interfaces; semi-empirical models and model calculations;
D O I
10.1016/S0039-6028(01)00976-1
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The surface properties of a WSe2 electrode have been investigated with a scanning-tunneling microscope in an electrochemical cell. Current-potential curves have been obtained for various electrode potentials and tunneling distances. They show a strong influence of the tip on the local electrode potential. The main features can be understood within a simple model describing the distribution of the electrostatic potential and its effect on the local electronic density. (C) 2001 Elsevier Science B,V. All rights reserved.
引用
收藏
页码:183 / 190
页数:8
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